Avaliação nutritiva da silagem de cártamo, produção de biomassa, grãos e óleo

Possenti, Rosana Aparecida; Arantes, A. M.; Brás, Patrícia; Andrade, João Batista de; Júnior, Evaldo Ferrari

doi:10.17523/bia.v73n3p236

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…Nitrogen retained as N-ADF is practically indigestible and is generally associated with lignin and other compounds of difficult degradation (OLIVEIRA et al, 2010). Increases in N-ADF contents may occur when there is an excessive heat production and with the physiological plant age, which may compromise the integrity and availability of nitrogen fraction and, consequently, result in slower degradation rates in the animal's digestive tract (SNIFFEN et al, 1992;POSSENTI et al, 2016). NS -Not significant; ** -Significant at 5% probability.…”

Section: Morphology and Structure Of The Foragementioning

confidence: 99%

Potential of methane and carbon dioxide in vitro production by Urochloa hybrid subjected to periods of coexistence with weeds

Meurer¹,

Brito²,

Marchi

et al. 2020

Biosci. J.

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The increased world population has raised the demand for animal proteins, forcing livestock to become productive, efficient, and environmentally sustainable. This study aimed to assess the effect of weed coexistence on productivity, nutritional quality, and potential production of greenhouse gases (GHG) by Convert HD364 grass (Urochloa hibrida cv. Mulato II) under pasture renovation conditions. The experiment was carried out in a randomized block design with four replications and treatments consisting of eight coexistence periods: 0, 15, 30, 45, 60, 75, 90, and 120 days after seedling emergence. Phytosociological assessments were performed in the weed community at the end of each coexistence period. The Convert HD364 grass was assessed for the morphological and chemical-bromatological parameters and for the GHG emission potential. Productivity, nutritional quality, and energy value of the Convert HD364 grass decreased proportionally with the increased period of weed coexistence. The non-coexistence with weeds results in a better in vitro digestibility of organic matter and, consequently, decreases the potential of GHG emission by the dry matter of the Convert HD364 grass.

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Section: Morphology and Structure Of The Foragementioning

confidence: 99%

Potential of methane and carbon dioxide in vitro production by Urochloa hybrid subjected to periods of coexistence with weeds

Meurer¹,

Brito²,

Marchi

et al. 2020

Biosci. J.

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show abstract

“…The ideal pH for silage conservation can be affect by the humidity of the ensiled material and the fermentation temperature. Silages with a DM content greater than 20%, a pH equivalent to 4.0 is acceptable for satisfactory conservation (Possenti et al, 2016). The pH is one of the main indicators of silage quality.…”

Section: Resultsmentioning

confidence: 99%

Chemical-bromatological composition of elephant grass silage with increasing levels of acerola by-product

Magalhães

Rodrigues²,

Santos³

et al. 2023

RSD

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The objective of this study was to evaluate the chemical-bromatological composition of elephant grass (EG) silages with the addition of acerola by-product (ABP). The experimental design was completely randomized, with five treatments: Treatment 1 = 100% EG; Treatment 2 = 94% EG + 06% ABP; Treatment 3 = 88% EG + 12% ABP; Treatment 4 = 82% EG + 18% ABP and Treatment 5 = 76% EG + 24% ABP, with four replications (silos). EG and ABP were mixed at the time of ensiling. The silos were open at 42 days and samples were collect for chemical analysis. The addition of up to 24% of ABP in EG silage significantly (P<.05) increases the pH, dry matter (DM) and crude protein levels, thus providing fermentations within desirable standards. The estimated dry matter intake, neutral detergent fiber (NDF), ash and ethereal extract of EG silage was not influenced by ABP. Total digestible nutrients, total carbohydrates, hemicellulose and estimated DM digestibility decreased linearly. The high levels of NDF and acid detergent fiber of the ABP compromise the DM digestibility, reducing the nutritional value of the silages.

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“…In addition, increases in N-ADF levels may occur when there is an excessive heat production and according to the physiological age of the plant. This may compromise the integrity and availability of the nitrogen fraction and, consequently, result in slower rates of degradation in the digestive tract of the animal (Sniffen et al, 1992;Possenti et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Potential of Greenhouse Gas Production by Guinea Grass Subjected to Weed Competition

Marchi¹,

Sousa²,

Marques³

et al. 2019

JAS

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The world population growth and the increasing purchasing power have raised the demand for animal proteins, especially meat and milk. This has made it essential to intensify livestock production by making it productive, efficient and at the same time sustainable, which today is a great challenge for cattle ranchers. The objective of this study is to evaluate the effects of coexistence with weeds on productivity, nutritional quality and potential of greenhouse gas (GHG) emission by Guinea grass (Panicum maximum cv. Mombasa) in pasture renewal conditions. The experiment was set up in randomized blocks, four replications, with treatments consisting of eight periods of coexistence: 0, 15, 30, 45, 60, 75, 90 and 120 days after seedlings emergence. Phyto-sociological evaluations were performed in the weed community at the end of each coexistence period. The Guinea grass was evaluated as for morphological, chemical and bromatological parameters and as for the potential of total gas, methane and carbon dioxide emission. The results show that productivity, nutritional quality and energy value of Guinea grass decreases proportionally to the increase in the period of coexistence with weeds. The non-coexistence with weeds provides a better in vitro digestibility of organic matter and, consequently, decreases the GHG emission potential by the dry matter of Guinea grass.

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Avaliação nutritiva da silagem de cártamo, produção de biomassa, grãos e óleo

Cited by 5 publications

References 3 publications

Potential of methane and carbon dioxide in vitro production by Urochloa hybrid subjected to periods of coexistence with weeds

Potential of methane and carbon dioxide in vitro production by Urochloa hybrid subjected to periods of coexistence with weeds

Chemical-bromatological composition of elephant grass silage with increasing levels of acerola by-product

Potential of Greenhouse Gas Production by Guinea Grass Subjected to Weed Competition

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